\begin{aligned} &C = 3y^2+4y+4 &D = -7y^2+3y-6 \end{aligned}


C=3y
2
+4y+4
D=−7y
2
+3y−6


D-C=D−C=D, minus, C, equals

Your answer should be a polynomial in standard form.

answer:     true

step-by-step explanation:

d i think

step-by-step explanation:

sine

step-by-step explanation:

54 kilometers per hour

step-by-step explanation:

according to rules:

1 km = 1000 meter

which means that 1 meter = 1/1000 km

1 hour = 3600 second [ as 1 hour = 60 min = 60 *60 seconds ]

which means that 1 second = 1/3600 hour

therefore, 1 kilometer/hour =

thus to convert 15 meter per second to kilometer per hour, we multiply 15 to 3.6 kilometer/hour.

15 meter/second=   which is the required answer.